what are governor romney's loopholes will romney close, what will he do about immigration? you're holding out making a decision? >> i'm still holding out, yes. >> reporter: that's why president obama was back in nevada today. both candidates are battling hard for this battleground state. on the ground to get out the vote, carpet bombing the airwaves with political ads. >> my plan will create 12 million new jobs over the next four years. >> it's not just going to generate more jobs, going to create one more million jobs, tell me how, where? >> today it could be obama, tomorrow it could be romney. i can't promise anything. >> reporter: peplowski and lopez both hope the debates will help them finally make up their minds. bill whitaker, cbs news, las vegas. >> glor: in afghanistan a fire fight today claimed the lives of two americans, a u.s. service member and civilian contractor. it happened in eastern wardak province. three afghan soldiers also died, and afghan army official calls it a misunderstanding between nato-led forces and afghan soldiers manning a check point. in iraq